New insights into the Earth's formation

"The prevailing theory in astrophysics and cosmochemistry is that the Earth formed from chondriti

. These are relatively small, simple blocks of rock and metal that formed early on in the solar system," 

"The problem with this theory is that no mixture of these chondrites can explain the exact composition of the Earth, 

Various hypotheses have been put forward over the years to explain this discrepancy.

This vaporized the light elements, leaving the planet in its current composition.

"The isotopes of a chemical element all have the same number of protons,

Dynamic models with which we simulate the formation of planets show that the planets in our solar system formed progressively

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